Neumann_val_ext.h

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#ifndef Neumann_val_ext_included
#define Neumann_val_ext_included
 
#include <Neumann.h>
 
/*! @brief Classe Neumann_val_ext Cette classe est la classe de base de la hierarchie des conditions
 *
 *     aux limites de type Neumann_val_ext.
 *     Une condition aux limites de type Neumann_val_ext impose la valeur de la derivee
 *     d'un champ inconnue sur une frontiere, ce qui correspond a:
 *       - flux impose pour l'equation de transport d'un scalaire
 *       - contrainte imposee pour l'equation de quantite de mouvement
 *
 * @sa Cond_lim_base Neumann_val_ext_homogene
 */
class Neumann_val_ext: public Neumann
{
  Declare_base(Neumann_val_ext);
public:
  virtual const DoubleTab& tab_ext() const = 0;
  virtual DoubleTab& tab_ext() = 0;
 
  virtual double val_ext(int i) const = 0;
  virtual double val_ext(int i, int j) const = 0;
};
 
#endif